timecodestamper - how to

[Yair Reshef]

in launch line for PAY -  source=5 (not 0 as above.)


either way,
with GST_DEBUG=*stamper*:7 on the DEPAY i get weird messages.

<timecodestamper0> received event qos event: 0x7f8ec4003570, time
99:99:99.999999999, seq-num 219, GstEventQOS, type=(GstQOSType)underflow,
proportion=(double)0.99995626099444379, diff=(gint64)594361,
timestamp=(guint64)71459716703;
<timecodestamper0> Handling video frame with running time 0:01:12.459720896
<timecodestamper0> Incremented internal timecode to 00:01:12:00
<timecodestamper0> *Never saw an upstream timecode*
<timecodestamper0> Created RTC timecode 16:25:29:00 for 2020-03-23 16:25
+0200 (436905 us)
<timecodestamper0> Incremented RTC timecode to 16:25:29:00
(+0:00:00.000000000 drift)

Got message #220 from element "timecodestamper0" (element):
timecodestamper, timestamp=(guint64)72459720896,
stream-time=(guint64)72459720896, running-time=(guint64)72459720896,
duration=(guint64)1000000000, timecode=(GstVideoTimeCode)00:01:12:00;

On Mon, Mar 23, 2020 at 3:12 PM Yair Reshef <yair99 at gmail.com> wrote:

> i am looking to stamp my frames with SMTP timecode. in order to
> synchronize multiple streams on server.
> but i dont get what i expect, depay overwrites the timecode with its own.
> PAY=       (GstVideoTimeCode)15:09:14:28
> DEAPY= (GstVideoTimeCode)00:00:05:18
>
> it might be an error in the plug or an error in my brain
>
>
> PAY
> timecodestamper pay is configured to
> get the timecode from RTC - (source=5, Timecode from real time clock)
> ALWAYS push timecode - (set=2, Always set timecode and remove upstream
> timecode)
> and has post-messages enabled to show it.
>
> DEPAY
> timecodestamper is configured to
> KEEP timecode -  (set=0. Never set timecodes)
> and has post-messages enabled to show it.
>
>
> #PAY
> gst-launch-1.0 -m -v \
> videotestsrc is-live=true !
> "video/x-raw,width=720,height=480,framerate=1/1" \
> ! videoconvert ! clockoverlay ! timecodestamper post-messages=true set=2
> source=0 \
> ! queue ! rtpgstpay config-interval=1 ! udpsink port=5000 host=127.0.0.1 \
>  2>&1 | grep -o -P '(?<=timecode=).*(?=\;)'
>
>
> #DEPAY
> cps="application/x-rtp, media=(string)application, clock-rate=(int)90000,
> encoding-name=(string)X-GST,
> caps=(string)dmlkZW8veC1yYXcsIGZvcm1hdD0oc3RyaW5nKUk0MjAsIHdpZHRoPShpbnQpNzIwLCBoZWlnaHQ9KGludCk0ODAsIGZyYW1lcmF0ZT0oZnJhY3Rpb24pMS8xLCBtdWx0aXZpZXctbW9kZT0oc3RyaW5nKW1vbm8sIHBpeGVsLWFzcGVjdC1yYXRpbz0oZnJhY3Rpb24pMS8xLCBpbnRlcmxhY2UtbW9kZT0oc3RyaW5nKXByb2dyZXNzaXZl\0"
>
> gst-launch-1.0 -m -v \
> udpsrc port=5000 caps="$cps" ! rtpgstdepay \
> ! timecodestamper post-messages=true set=0 ! videoconvert ! autovideosink \
> 2>&1 | grep -o -P '(?<=timecode=).*(?=\;)'
>
>
> https://github.com/GStreamer/gst-plugins-bad/blob/master/gst/timecode
>
>
>   "post-messages"       : Post element message containing the current timecode
>
>   "set"                 : Choose whether timecodes should be overridden or not
>                         flags: readable, writable
>                         Enum "GstTimeCodeStamperSet" Default: 1, "keep"
>                            (0): never            - Never set timecodes
>                            (1): keep             - Keep upstream timecodes and only set if no upstream timecode
>                            (2): always           - Always set timecode and remove upstream timecode
>
>   "source"              : Choose from what source the timecode should be taken
>                         flags: readable, writable
>                         Enum "GstTimeCodeStamperSource" Default: 0, "internal"
>                            (0): internal         - Use internal timecode counter, starting at zero or value set by property
>                            (1): zero             - Always use zero
>                            (2): last-known       - Count up from the last known upstream timecode or internal if unknown
>                            (3): last-known-or-zero - Count up from the last known upstream timecode or zero if unknown
>                            (4): ltc              - Linear timecode from an audio device
>                            (5): rtc              - Timecode from real time clock
>
>
> btw.
> im using RTPGSTPAY/DEPAY as i will be working with custom data, down the
> road
>
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